# Atomic Clock PRO vs BetterKeys

The clearest difference is ads: BetterKeys at none against Atomic Clock PRO's shown. BetterKeys also leads on update cadence (fortnightly vs every 4 months). Atomic Clock PRO's advantage is iOS requirement (15.6 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Atomic Clock PRO sells 2 in-app purchases, starting at $1.99 per month and BetterKeys sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Atomic Clock PRO ships an update every 4 months, BetterKeys fortnightly. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Atomic Clock PRO | BetterKeys |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (10K ratings)](https://appshunter.io/ios/app/atomic-clock-pro/id899090224/reviews)** | — |
| Number of ratings | **10K** | — |
| Positive reviews | 72.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 6 MB | 12 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Brachmann Online Marketing GmbH & Co. KG](https://appshunter.io/developer/682848918) | [Music or Media Holding](https://appshunter.io/developer/649537615) |

## What reviewers say

### Atomic Clock PRO

[App page](https://appshunter.io/ios/app/atomic-clock-pro/id899090224)

This app provides highly accurate time by syncing with official atomic clock servers. Customize your display with digital or analog views, personal backgrounds, and adjustable sizes. It's perfect for precise timekeeping, travel, or as a personalized desk clock.

**Highlights:** Atomic clock time synchronization, Digital and analog display options, Customizable backgrounds, Adjustable clock size, Automatic time zone recognition, Screen always on option

**Features:** macOS Compatibility, Vision Pro support, iPhone Duo support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.99 | per month |
| Remove Ads | $5.99 | one-time |

**What reviewers like**

- ⭐ Accurate time display
- 📟 Useful for timing events
- 🕰️ Helpful for setting other clocks
- 🔍 Large, easy-to-read clock face

**What reviewers complain about**

- 💸 Subscription model for ad-free version
- 📢 Excessive advertisements
- 🔍 Small font for seconds display
- 🔀 Difficulty in displaying both analog and digital clocks simultaneously

**Reported bugs**

- Second hand occasionally runs in reverse
- Digital clock display cuts off on some devices
- Inconsistent behavior when switching between clock types

**Requested features**

- Customizable clock face options
- Ability to set widget on home screen
- Sync with system clock to automatically update time


### BetterKeys

[App page](https://appshunter.io/ios/app/betterkeys/id6763868514)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Contribution | $0.99 | one-time |
| Contribution | $4.99 | one-time |
| Generous Contribution | $9.99 | one-time |


## Frequently asked questions

### Is Atomic Clock PRO free?

Atomic Clock PRO is free to download, with in-app purchases available.

### Is BetterKeys free?

BetterKeys is free to download, with in-app purchases available.

### Do Atomic Clock PRO or BetterKeys have ads?

Atomic Clock PRO shows ads; BetterKeys does not.

### Which is updated more often, Atomic Clock PRO or BetterKeys?

Atomic Clock PRO ships an update every 4 months, and BetterKeys fortnightly. Most recently, Atomic Clock PRO was updated on November 2, 2026 and BetterKeys on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*